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In a survey of 165 students, it was found that 65 students use Facebook, 85 students use Instagram, 50 students use Twitter, 25 students use both Facebook and Instagram, 15 students use both Facebook and Twitter, 20 students use both Twitter and Instagram, 10 students use all three social media platforms (Facebook, Instagram and Twitter). (a) Find the number of students who use exactly one of the three social media platforms. (b) Find the number of students who use none of the three social media platforms.

In a survey of 165 students, it was found that 65 students use Facebook, 85 students use Instagram, 50 students use Twitter, 25 students use both Facebook and Instagram, 15 students use both Facebook and Twitter, 20 students use both Twitter and Instagram, 10 students use all three social media platforms (Facebook, Instagram and Twitter). (a) Find the number of students who use exactly one of the three social media platforms. (b) Find the number of students who use none of the three social media platforms.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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In a survey of 165 students, it was found that 65 students use Facebook, 85 students use Instagram, 50 students use Twitter, 25 students use both Facebook and Instagram, 15 students use both Facebook and Twitter, 20 students use both Twitter and Instagram, 10 students use all three social media platforms (Facebook, Instagram and Twitter). (a) Find the number of students who use exactly one of the three social media platforms. (b) Find the number of students who use none of the three social media platforms.
Transcribed Image Text:In a survey of 165 students, it was found that 65 students use Facebook, 85 students use Instagram, 50 students use Twitter, 25 students use both Facebook and Instagram, 15 students use both Facebook and Twitter, 20 students use both Twitter and Instagram, 10 students use all three social media platforms (Facebook, Instagram and Twitter). (a) Find the number of students who use exactly one of the three social media platforms. (b) Find the number of students who use none of the three social media platforms.
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